{"title":"Raw Materials Pricing By Full Bag","description":"\u003ch3\u003eRAW MATERIALS : Full Bag Quantities\u003c\/h3\u003e\n\u003cp\u003eMOST FULL BAGS ARE 50 Pounds: a few are 44 pounds and some are 55 pounds. It will say in the description for each product.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"color: #800000;\"\u003eFOR WEEKEND PICKUP, PLACE ALL DRY MATERIAL, CHEMICAL, OR EQUIPMENT ORDERS BY 12 NOON ON FRIDAY.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFrom \"Additive A\" to \"Zircopax Plus\", we have a comprehensive selection of raw materials and Ceramic Chemicals available at all times. \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/raw-materials-vlook-v-10-23-26.pdf?v=1792779205\" title=\"Raw Materials Pricing\"\u003eClick here to view recent pricing for the complete list of raw materials\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eWe offer all of the domestically available dry raw materials used in creating pottery glazes and clay bodies. Many of these items are cross-discipline and are also used for a wide range of fine arts including cast sculpture and painting as well as for industrial applications, 3d printing, rapid prototyping (RP), solid 'free-form fabrication' (SFF) or additive layer manufacture.\u003c\/p\u003e\n\u003cp\u003eFeel free to email (sales2@sheffield-pottery.live) if there is hard to find material that you need for your project.\u003c\/p\u003e\n\u003cp\u003eYou may wish to refer to our handy \u003ca href=\"\/blogs\/ceramic-arts-blog\/raw-materials-dictionary-glaze-making-clay-ingredients\"\u003eRAW MATERIALS DICTIONARY\u003c\/a\u003e for additional information on raw materials including Dry Clay, Chemicals, Plasters, and Oxides.\u003c\/p\u003e\n\u003cp\u003eOnline Ordering of Raw Materials\u003c\/p\u003e\n\u003cp\u003eEvery size of our raw materials can be ordered online: \u003ca title=\"Order Raw Materials Online\" href=\"\/collections\/raw-materials-and-ceramic-chemicals\"\u003eOnline Raw Materials.\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eRaw material prices are subject to frequent market price fluctuation.\u003c\/p\u003e\n\u003cp\u003eFull bags mix and match: the weight of every full bag in your order, across all raw materials, adds up to set your price level. Smaller sizes don't count toward the total.\u003cbr\u003eUPS Hundredweight Shipping and freight by our trucks or common carrier are available for large orders.\u003c\/p\u003e\n\u003cp\u003eTesting Policy\u003c\/p\u003e\n\u003cp\u003eTesting of raw materials should be an integral part of ceramic manufacturing. Upon receipt of any new material, we strongly recommend that you test the material. SHEFFIELD POTTERY, INC. has no control over either the variations that may occur in the natural materials or their application. Therefore, our products are sold with the understanding that the user is solely responsible for determining suitability for any purpose and the results obtained. There are no warranties expressed or implied, regarding the user’s finished product or results.\u003c\/p\u003e","products":[{"product_id":"spodumene-f-s-5-pounds-out-of-stock","title":"Spodumene F\u0026S","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003eSPODUMENE FS\u003c\/p\u003e\n\u003cp\u003eIn ceramics, spodumene is primarily used as a source of \"lithium\" (referred to as \"lithia\") which acts as a flux, lowering the melting point of glazes and clay bodies, allowing for lower firing temperatures and promoting smoother vitrification; it can also contribute to brighter colors in glazes, particularly with cobalt blue, while also potentially creating a matte surface appearance\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQuestions?\u003c\/strong\u003e Call us at 1-888-774-2529.\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286202220915,"sku":"RMSPOFS-1","price":24.55,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":45078511386946,"sku":"RMSPOFS","price":120.25,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286202253683,"sku":"RMSPOFS-10","price":239.5,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286202286451,"sku":"RMSPOFS-25","price":597.5,"currency_code":"USD","in_stock":true},{"title":"55 Pounds","offer_id":67286202319219,"sku":"RMSPOFS55","price":596.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/products\/RMSPOFS-1.jpg?v=1683454429"},{"product_id":"alumina-hydrate-5-pounds-rmaluhyd5","title":"Alumina Hydrate","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003c\/span\u003eALUMINA HYDRATE 5 Pounds\u003cbr\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286214541683,"sku":"RMALUHYDAH280A-1","price":4.0,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":45105252401474,"sku":"RMALUHYD5","price":17.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286214574451,"sku":"RMALUHYD10LB","price":34.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286214607219,"sku":"RMALUHYDAH280A-25","price":82.5,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67286214639987,"sku":"RMALUHYD50","price":82.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/large-alumina_hydrate_powder_35553fe1-7b75-4a87-8b99-286fdacc6832.jpg?v=1693509911"},{"product_id":"bone-ash-synthetic-1-lb-rmbonashs","title":"Bone Ash, Synthetic","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003c\/span\u003eSynthetic Bone Ash  - 1 lb","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":45105253908802,"sku":"RMBONASHS","price":17.55,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67286206775667,"sku":"RMBONASHS-5","price":85.25,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286206808435,"sku":"RMBONASHS-10","price":169.5,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286206841203,"sku":"RMBONASHS-25","price":422.5,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67286206873971,"sku":"RMBONASHS-50","price":421.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/600_BoneAsh_800x_e27dcc30-0d63-4af7-84e9-8f9d8c6cb8e6.jpg?v=1693508523"},{"product_id":"cedar-heights-50m-bonding-fire-clay-50-lbs-dry-rmbondin","title":"Cedar Heights 50M Bonding Fire Clay","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eCedar heights 50M bonding fire clay.\u003cbr\u003e\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"5 Pounds","offer_id":67286253076851,"sku":"RMBONDIN-5","price":6.25,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286253109619,"sku":"RMBONDIN-10","price":11.5,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286253142387,"sku":"RMBONDIN-25","price":26.25,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":45105254039874,"sku":"RMBONDIN","price":26.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/hawthorn__53161_20a76b42-b580-4e90-a190-d16a588ee0e7.jpg?v=1723753503"},{"product_id":"dolomite-limestone-10-pound-bag-rmdolomi","title":"Dolomite","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eDolomite (Limestone).\u003cbr\u003e\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"5 Pounds","offer_id":67286206218611,"sku":"RMDOLOMI-5","price":5.0,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":45105260265794,"sku":"RMDOLOMI","price":9.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286206251379,"sku":"RMDOLOMI-25","price":20.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67286206284147,"sku":"RMDOLOMI50","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/il_570xN.4751156004_mos9_2_1fd824d9-e371-4853-a0bb-a99cf6297d55.jpg?v=1791876103"},{"product_id":"frit-3110-5-pounds-rmfri3110","title":"Frit 3110","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eFrit 3110\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286212411763,"sku":"RMFRI3110-1","price":6.15,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":45105262199106,"sku":"RMFRI3110","price":30.0,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286212444531,"sku":"RMFRI3110-10","price":59.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286212477299,"sku":"RMFRI3110-25","price":145.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67286212510067,"sku":"RMFRI311050","price":144.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/large-3110_frit_pic_b4c3b4b4-d341-4d83-a699-395e3f5aa611.jpg?v=1724426410"},{"product_id":"frit-3134-5-pounds-rmfri3134","title":"Frit 3134","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eFrit 3134\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286214050163,"sku":"RMFRI3134-1","price":6.95,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":45105262756162,"sku":"RMFRI3134","price":34.0,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286214082931,"sku":"RMFRI3134-10","price":67.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286214115699,"sku":"RMFRI3134-25","price":165.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67286214148467,"sku":"RMFRI313450","price":164.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/large-3134_frit_pic.jpg?v=1693512914"},{"product_id":"frit-3269-5-pounds-rmfri3269","title":"Frit 3269","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eFrit 3269\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286214377843,"sku":"RMFRI3269-1","price":6.45,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":45105263214914,"sku":"RMFRI3269","price":31.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286214410611,"sku":"RMFRI3269-10","price":62.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286214443379,"sku":"RMFRI3269-25","price":152.5,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67286214476147,"sku":"RMFRI3269-50","price":152.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/large-3134_frit_pic_68f76e2e-3156-4009-a9d5-4a02a9f792b4.jpg?v=1693513117"},{"product_id":"iron-chromate-1lb-rmirochr","title":"Iron Chromate","description":"\u003cp\u003e\u003cstrong\u003eA dark colorant for grays, browns and blacks in glazes, slips and clay bodies.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA dark powder made of iron and chrome. It gives grays, browns and blacks, depending on the glaze. Potters also mix it into clay or slip to make dark or speckled clay bodies.\u003c\/p\u003e\n\u003ch3\u003eGetting started\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIn a glaze, start at 1 to 2% (1 to 2 grams per 100 grams of dry glaze) and test.\u003c\/li\u003e\n\u003cli\u003eIn clay or slip, start around 2% for a gray body and add more for darker color.\u003c\/li\u003e\n\u003cli\u003eLike chrome oxide, it can turn tin-bearing glazes pink, in the same pot or in the same kiln.\u003c\/li\u003e\n\u003cli\u003eFire a test tile before you use it on finished work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFor glaze formulators\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eIron chromite (FeCr₂O₄ type). Refractory.\u003c\/li\u003e\n\u003cli\u003eGives warm grays and browns in most bases. Blacks come from combining it with cobalt and manganese.\u003c\/li\u003e\n\u003cli\u003eAvoid tin in the same glaze unless you want pinks or tans; zinc pushes it toward brown.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eContains chromium. Don't breathe the dust. Wear a NIOSH-approved respirator (N95 or better) and gloves when handling it dry. Clean up with a wet sponge, not a broom.\u003c\/li\u003e\n\u003cli\u003eFor functional ware, use a stable, tested base glaze, and have the finished glaze lab-tested before you sell the work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSizes \u0026amp; pricing\u003c\/h3\u003e\n\u003ctable style=\"width:100%;max-width:520px;border-collapse:collapse;border:0;margin:0 0 14px;font-variant-numeric:tabular-nums;line-height:1.35;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:left;width:40%;\"\u003eSize\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003ePrice\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003ePer lb\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e1 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$3.35\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$3.35\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=45105270096194\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e5 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$16.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$3.20\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286163915123\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e10 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$31.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$3.10\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286163947891\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e25 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$75.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$3.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286163980659\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;font-weight:700;\"\u003e50 lb bag\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;font-weight:700;\"\u003e$133.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;font-weight:700;\"\u003e$2.66\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286164013427\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"max-width:520px;margin:0 0 12px;padding:12px 14px;border-radius:8px;background:#eef3ee;border:1px solid #d6e3d7;\"\u003e\n\u003cp style=\"margin:0 0 10px;\"\u003e\u003cstrong\u003eFull bags mix and match.\u003c\/strong\u003e Every full bag in your order, of any raw material, adds up. That total sets the price of every bag. Smaller sizes don't count.\u003c\/p\u003e\n\u003ctable style=\"width:100%;max-width:520px;border-collapse:collapse;border:0;margin:0;font-variant-numeric:tabular-nums;line-height:1.35;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:left;width:46%;\"\u003eFull bags in your order\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003ePrice per 50 lb bag\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003ePer lb\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003eUnder 500 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$133.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$2.66\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e500 lb and up\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$130.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$2.61\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e2,000 lb and up\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$128.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$2.56\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e6,000 lb and up\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$125.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$2.51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e12,000 lb and up\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$122.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$2.45\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin:0;font-size:13px;color:#6b6259;\"\u003ePrices from our October 23, 2026 price list.\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":45105270096194,"sku":"RMIROCHR","price":3.35,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67286163915123,"sku":"RMIROCHR-5","price":16.0,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286163947891,"sku":"RMIROCHR-10","price":31.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286163980659,"sku":"RMIROCHR-25","price":75.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67286164013427,"sku":"RMIROCHR-50","price":133.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/ironchromate.jpg?v=1693513875"},{"product_id":"iron-oxide-yellow-five-pound-bag-rmirooxiy5060","title":"Iron Oxide, Yellow","description":"\u003cp\u003e\u003cstrong\u003eA very fine iron oxide for smooth slips and washes. It won't stay yellow in the kiln.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA fine yellow powder. Many people expect a yellow glaze from it, but in the kiln it turns into red iron oxide and gives the same ambers and browns. Potters choose it for its fine grain, which mixes smoothly into slips, washes and engobes. It's also used as a pigment in unfired work like paints and plasters.\u003c\/p\u003e\n\u003ch3\u003eGetting started\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDon't use it to make a yellow glaze. For yellow, use a yellow glaze stain.\u003c\/li\u003e\n\u003cli\u003eUse it wherever you'd use red iron oxide, adding about 10% more to get the same amount of iron.\u003c\/li\u003e\n\u003cli\u003eFire a test tile before you use it on finished work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFor glaze formulators\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eHydrated iron oxide, FeO(OH). Loses about 10% of its weight as water in firing and converts to Fe₂O₃.\u003c\/li\u003e\n\u003cli\u003e1 part Fe₂O₃ ≈ 1.1 parts yellow iron oxide.\u003c\/li\u003e\n\u003cli\u003eVery fine particles: disperses easily with little specking.\u003c\/li\u003e\n\u003cli\u003eGrade: #5060.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLow toxicity, but don't breathe the dust. Wear a NIOSH-approved respirator (N95 or better) when handling it dry, and clean up with a wet sponge, not a broom.\u003c\/li\u003e\n\u003cli\u003eIt stains skin, clothes and work surfaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSizes \u0026amp; pricing\u003c\/h3\u003e\n\u003ctable style=\"width:100%;max-width:520px;border-collapse:collapse;border:0;margin:0 0 14px;font-variant-numeric:tabular-nums;line-height:1.35;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:left;width:40%;\"\u003eSize\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003ePrice\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003ePer lb\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e1 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$6.15\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$6.15\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286164177267\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e5 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$28.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$5.70\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=45105270554946\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e10 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$54.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$5.45\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286164210035\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e25 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$130.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$5.20\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286164242803\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;font-weight:700;\"\u003e50 lb bag\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;font-weight:700;\"\u003e$236.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;font-weight:700;\"\u003e$4.72\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286164275571\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"max-width:520px;margin:0 0 12px;padding:12px 14px;border-radius:8px;background:#eef3ee;border:1px solid #d6e3d7;\"\u003e\n\u003cp style=\"margin:0 0 6px;\"\u003e\u003cstrong\u003eFull bags mix and match.\u003c\/strong\u003e Every full bag in your order, of any raw material, adds up. That total sets the price of every bag. Smaller sizes don't count.\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eThis bag's price stays the same at every level, but it still counts toward your full-bag total.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin:0;font-size:13px;color:#6b6259;\"\u003ePrices from our October 23, 2026 price list.\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286164177267,"sku":"RMIROOXIY5060-1","price":6.15,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":45105270554946,"sku":"RMIROOXIY5060","price":28.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286164210035,"sku":"RMIROOXIY5060-10","price":54.5,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286164242803,"sku":"RMIROOXIY5060-25","price":130.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67286164275571,"sku":"RMIROOXIY5060-50","price":236.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/lead-oxide-yellow-500x500.jpg?v=1693514112"},{"product_id":"manganese-carbonate-rmmancar","title":"Manganese Carbonate","description":"\u003cp\u003e\u003cstrong\u003eFor browns, plum purples and metallic bronze effects in glazes, and for darker clay bodies.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA pale pink powder. Manganese gives browns and plum purples in glazes, and at high amounts metallic bronze or black surfaces. It also darkens and speckles clay bodies. The carbonate is the fine-grained form, so it mixes in more evenly than manganese dioxide.\u003c\/p\u003e\n\u003ch3\u003eGetting started\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStart at 2 to 4% (2 to 4 grams per 100 grams of dry glaze). Most glazes use 6% or less.\u003c\/li\u003e\n\u003cli\u003eGlazes high in sodium or potassium push it toward purple; most others give browns.\u003c\/li\u003e\n\u003cli\u003eMetallic glazes use much more manganese and need extra care. Read the safety notes first.\u003c\/li\u003e\n\u003cli\u003eAlways fire with kiln ventilation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFor glaze formulators\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eManganese carbonate, MnCO₃. Loses about 38% of its weight as gas in firing.\u003c\/li\u003e\n\u003cli\u003e1 part MnO₂ ≈ 1.3 parts MnCO₃ for the same manganese.\u003c\/li\u003e\n\u003cli\u003eFiner than manganese dioxide, so fewer specks. The gas it gives off can cause blistering at higher amounts.\u003c\/li\u003e\n\u003cli\u003eWith iron: browns. With iron and cobalt: blacks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManganese gives off fumes during firing.\u003c\/strong\u003e Repeated breathing of manganese fumes or dust can damage the nervous system. Vent your kiln to the outside and stay out of the kiln room while it fires.\u003c\/li\u003e\n\u003cli\u003eWear a NIOSH-approved respirator (N95 or better) and gloves when handling it dry. Clean up with a wet sponge, not a broom.\u003c\/li\u003e\n\u003cli\u003eAvoid high-manganese glazes on food surfaces, and have functional ware lab-tested before you sell it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSizes \u0026amp; pricing\u003c\/h3\u003e\n\u003ctable style=\"width:100%;max-width:520px;border-collapse:collapse;border:0;margin:0 0 14px;font-variant-numeric:tabular-nums;line-height:1.35;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:left;width:40%;\"\u003eSize\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003ePrice\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003ePer lb\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e1 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$42.20\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$42.20\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=45105272815938\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e5 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$194.75\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$38.95\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286164636019\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e10 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$373.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$37.35\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286164668787\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e25 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$892.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$35.70\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286164701555\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;font-weight:700;\"\u003e55 lb bag\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;font-weight:700;\"\u003e$1,784.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;font-weight:700;\"\u003e$32.45\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286164734323\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"max-width:520px;margin:0 0 12px;padding:12px 14px;border-radius:8px;background:#eef3ee;border:1px solid #d6e3d7;\"\u003e\n\u003cp style=\"margin:0 0 6px;\"\u003e\u003cstrong\u003eFull bags mix and match.\u003c\/strong\u003e Every full bag in your order, of any raw material, adds up. That total sets the price of every bag. Smaller sizes don't count.\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eThis bag's price stays the same at every level, but it still counts toward your full-bag total.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin:0;font-size:13px;color:#6b6259;\"\u003ePrices from our October 23, 2026 price list.\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":45105272815938,"sku":"RMMANCAR","price":42.2,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67286164636019,"sku":"RMMANCAR-5","price":194.75,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286164668787,"sku":"RMMANCAR-10","price":373.5,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286164701555,"sku":"RMMANCAR-25","price":892.5,"currency_code":"USD","in_stock":true},{"title":"55 Pounds","offer_id":67286164734323,"sku":"RMMANCAR-55","price":1784.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/1200px-Manganese_28II_29-carbonate-sample_9f72cc3e-8d78-4446-94a1-a38c0d1c4435.jpg?v=1791876107"},{"product_id":"molochite-30m-55-pound-bag-rmmol30","title":"Molochite 30 Mesh","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eMolochite 30M\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67289115459955,"sku":"RMMOL30-1","price":4.35,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67289115492723,"sku":"RMMOL30-5","price":21.0,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":62236389212531,"sku":"RMMOL30-10","price":41.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":62236389245299,"sku":"RMMOL3-25","price":100.0,"currency_code":"USD","in_stock":true},{"title":"55 Pounds","offer_id":62236389278067,"sku":"RMMOL30","price":145.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/Molochite-30-Mesh-RockyMountainClay.jpg?v=1693515127"},{"product_id":"molochite-50-80m-55-pound-bag-rmmol5080","title":"Molochite 50-80 Mesh","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eMolochite 50-80M\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67288216764787,"sku":"RMMOL5080-1","price":4.35,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67288216797555,"sku":"RMMOL5080-5","price":21.0,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67288216830323,"sku":"RMMOL5080-10","price":41.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67288216863091,"sku":"RMMOL5080-25","price":100.0,"currency_code":"USD","in_stock":true},{"title":"55 Pounds","offer_id":45105274487106,"sku":"RMMOL5080","price":145.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/DM-MOL5080_Molochite_50_to_80_Mesh_HWC_500x500_600x600_b51626cd-f76c-4eda-a2ac-8d3b115da057.jpg?v=1693515183"},{"product_id":"mullite-200m-10-pounds-rmmul200","title":"Mullite 200 Mesh","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eMullite 200M\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67288220303731,"sku":"RMMUL20050-1","price":1.55,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67288220336499,"sku":"RMMUL20050-5","price":5.25,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":45105274814786,"sku":"RMMUL200","price":9.5,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67288220369267,"sku":"RMMUL20050-25","price":21.25,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67288220402035,"sku":"RMMUL20050-50","price":41.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/large-Tile_six_dry_clay_600x600_3063ae0e-f5db-49b7-8a4b-6e170b71fddb.jpg?v=1693515230"},{"product_id":"mullite-35m-10-pounds-rmmul35","title":"Mullite 35 Mesh","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eMullite 35M\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67288219648371,"sku":"RMMUL3550-1","price":1.55,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67288219681139,"sku":"RMMUL3550-5","price":5.25,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":45105275076930,"sku":"RMMUL35","price":9.5,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67288219713907,"sku":"RMMUL3550-25","price":21.25,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67288219746675,"sku":"RMMUL3550-50","price":41.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/Mullite-35-Mesh-RockyMountainClay.jpg?v=1693515280"},{"product_id":"nylon-fiber-rmnylfib","title":"Nylon Fiber","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003c\/span\u003eNYLON FIBER","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":45105276846402,"sku":"RMNYLFIB","price":14.6,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67293616111987,"sku":"RMNYLFIB-5","price":69.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67293616144755,"sku":"RMNYLFIB-10","price":132.5,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67293616177523,"sku":"RMNYLFIB-25","price":315.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67293616210291,"sku":"RMNYLFIB-50","price":521.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/products\/RMNYLFIB-2.jpg?v=1683796551"},{"product_id":"pearl-ash-potassium-carbonate-10-pounds-rmpotcar","title":"Pearl Ash (Potassium Carbonate)","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 data-end=\"642\" data-start=\"612\"\u003e\u003cstrong data-end=\"640\" data-start=\"612\"\u003eKey Features \u0026amp; Benefits:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"1326\" data-start=\"643\"\u003e\n\u003cli data-end=\"754\" data-start=\"643\"\u003e\n\u003cp data-end=\"754\" data-start=\"645\"\u003eHigh-purity \u003cstrong data-end=\"688\" data-start=\"657\"\u003epotassium carbonate (K₂CO₃)\u003c\/strong\u003e, also known as pearl ash. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"925\" data-start=\"755\"\u003e\n\u003cp data-end=\"925\" data-start=\"757\"\u003eActs as a solid \u003cstrong data-end=\"788\" data-start=\"773\"\u003epotash flux\u003c\/strong\u003e source: when used in glazes or ceramic bodies, provides K₂O without introducing unwanted oxides. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1096\" data-start=\"926\"\u003e\n\u003cp data-end=\"1096\" data-start=\"928\"\u003eWhite, hygroscopic solid, highly soluble in water (≈ 110 g per 100 mL at 20 °C) making it efficient for dissolving \u0026amp; dispersing. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1208\" data-start=\"1097\"\u003e\n\u003cp data-end=\"1208\" data-start=\"1099\"\u003eLarge format \u003cstrong data-end=\"1133\" data-start=\"1112\"\u003e50 lb (≈ 22.7 kg)\u003c\/strong\u003e bag offers economies of scale for studios, manufacturing, or bulk users.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1326\" data-start=\"1209\"\u003e\n\u003cp data-end=\"1326\" data-start=\"1211\"\u003eVersatile industrial\/creative uses: ceramics, glass, glazing, chemical intermediates, and speciality manufacturing.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"1355\" data-start=\"1328\"\u003e\u003cstrong data-end=\"1353\" data-start=\"1328\"\u003eTypical Applications:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2045\" data-start=\"1356\"\u003e\n\u003cli data-end=\"1562\" data-start=\"1356\"\u003e\n\u003cp data-end=\"1562\" data-start=\"1358\"\u003e\u003cstrong data-end=\"1380\" data-start=\"1358\"\u003eCeramics \u0026amp; Glazing\u003c\/strong\u003e: Use in mid-to-high temperature glazes as a potash flux; yields distinctive colour effects (e.g., copper + high potash = green-yellow tones). \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1702\" data-start=\"1563\"\u003e\n\u003cp data-end=\"1702\" data-start=\"1565\"\u003e\u003cstrong data-end=\"1595\" data-start=\"1565\"\u003eGlass \u0026amp; Frit Manufacturing\u003c\/strong\u003e: A direct source of K₂O, useful when other oxides must be avoided. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003ca class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" alt=\"https:\/\/digitalfire.com\/material\/pearl%2Bash?utm_source=chatgpt.com\" rel=\"noopener\" href=\"https:\/\/digitalfire.com\/material\/pearl%2Bash?utm_source=chatgpt.com\" target=\"_blank\"\u003e\u003cspan class=\"relative start-0 bottom-0 flex h-full w-full items-center\"\u003e\u003cspan class=\"flex h-4 w-full items-center justify-between overflow-hidden\"\u003e\u003cspan class=\"max-w-[15ch] grow truncate overflow-hidden text-center\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"1829\" data-start=\"1703\"\u003e\n\u003cp data-end=\"1829\" data-start=\"1705\"\u003e\u003cstrong data-end=\"1727\" data-start=\"1705\"\u003eChemical Feedstock\u003c\/strong\u003e: Employed where a highly alkaline potassium salt is required. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003ca class=\"flex h-4.5 overflow-hidden rounded-xl px-2 text-[9px] font-medium transition-colors duration-150 ease-in-out text-token-text-secondary! bg-[#F4F4F4]! dark:bg-[#303030]!\" alt=\"https:\/\/en.wikipedia.org\/wiki\/Potassium_carbonate?utm_source=chatgpt.com\" rel=\"noopener\" href=\"https:\/\/en.wikipedia.org\/wiki\/Potassium_carbonate?utm_source=chatgpt.com\" target=\"_blank\"\u003e\u003cspan class=\"relative start-0 bottom-0 flex h-full w-full items-center\"\u003e\u003cspan class=\"flex h-4 w-full items-center justify-between\"\u003e\u003cspan class=\"-me-1 flex h-full items-center rounded-full px-1 text-[#8F8F8F]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2045\" data-start=\"1830\"\u003e\n\u003cp data-end=\"2045\" data-start=\"1832\"\u003e\u003cstrong data-end=\"1871\" data-start=\"1832\"\u003eTraditional Food\/Leavening Contexts\u003c\/strong\u003e: Historically used as a leavening agent (pear-ash in baked goods) though this product is intended for industrial\/technical use-cases. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"2079\" data-start=\"2047\"\u003e\u003cstrong data-end=\"2077\" data-start=\"2047\"\u003eTechnical \u0026amp; Handling Info:\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2680\" data-start=\"2080\"\u003e\n\u003cli data-end=\"2146\" data-start=\"2080\"\u003e\n\u003cp data-end=\"2146\" data-start=\"2082\"\u003eChemical Formula: K₂CO₃. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2237\" data-start=\"2147\"\u003e\n\u003cp data-end=\"2237\" data-start=\"2149\"\u003eAppearance: White crystalline\/hygroscopic solid.\u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2402\" data-start=\"2238\"\u003e\n\u003cp data-end=\"2402\" data-start=\"2240\"\u003eStorage: Keep tightly sealed, dry environment — material absorbs moisture from air (hygroscopic) which may cause clumping. \u003cspan data-state=\"closed\" class=\"\"\u003e\u003cspan data-testid=\"webpage-citation-pill\" class=\"ms-1 inline-flex max-w-full items-center relative top-[-0.094rem] animate-[show_150ms_ease-in]\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2559\" data-start=\"2403\"\u003e\n\u003cp data-end=\"2559\" data-start=\"2405\"\u003eSafety: Handle with appropriate PPE (gloves, eye protection). Due to its alkaline nature, avoid skin\/eye contact and store away from incompatible acids.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2680\" data-start=\"2560\"\u003e\n\u003cp data-end=\"2680\" data-start=\"2562\"\u003ePackaging: Supplied in a robust bulk-bag appropriate for 50 lb weight; ideal for studio backstock or batch production.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-end=\"3022\" data-start=\"2682\"\u003e\u003cstrong data-end=\"2710\" data-start=\"2682\"\u003eWhy Choose This Product?\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-end=\"3022\" data-start=\"2682\"\u003eFor the serious ceramicist, glass-fabricator or chemical-processing professional: this bulk format provides a cost-effective way to access high purity potash flux\/alkali in the scale you need. No compromise in quality, and excellent flexibility for custom formulae, glaze recipes or industrial chemical needs.\u003c\/p\u003e\n\u003cp data-end=\"3093\" data-start=\"3024\"\u003e\u003cstrong data-end=\"3091\" data-start=\"3024\"\u003eUse \u0026amp; Application Tips (Staff-College style “Order of Battle”):\u003c\/strong\u003e\u003c\/p\u003e\n\u003col data-end=\"3960\" data-start=\"3094\"\u003e\n\u003cli data-end=\"3224\" data-start=\"3094\"\u003e\n\u003cp data-end=\"3224\" data-start=\"3097\"\u003e\u003cstrong data-end=\"3120\" data-start=\"3097\"\u003eRecon \u0026amp; Preparation\u003c\/strong\u003e: Confirm your substrate (glaze base, clay body or chemical mix) tolerates a highly alkaline addition.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3417\" data-start=\"3225\"\u003e\n\u003cp data-end=\"3417\" data-start=\"3228\"\u003e\u003cstrong data-end=\"3242\" data-start=\"3228\"\u003eDeployment\u003c\/strong\u003e: Incorporate powder in your batch with caution — mix dry first, then add water or other liquids as required. Ensure full dissolution if you intend to use the solution form.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3625\" data-start=\"3418\"\u003e\n\u003cp data-end=\"3625\" data-start=\"3421\"\u003e\u003cstrong data-end=\"3435\" data-start=\"3421\"\u003eMonitoring\u003c\/strong\u003e: Because K₂CO₃ is very soluble and active, monitor your colour response, melt behaviour and compatibility. For glaze use: a potash-rich glaze will melt differently than a sodium-rich one.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3818\" data-start=\"3626\"\u003e\n\u003cp data-end=\"3818\" data-start=\"3629\"\u003e\u003cstrong data-end=\"3657\" data-start=\"3629\"\u003eAfter-Action Maintenance\u003c\/strong\u003e: Store remaining material in a sealed container in a low-humidity environment; label clearly for “technical use – not food grade” unless documented otherwise.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3960\" data-start=\"3819\"\u003e\n\u003cp data-end=\"3960\" data-start=\"3822\"\u003e\u003cstrong data-end=\"3837\" data-start=\"3822\"\u003eContingency\u003c\/strong\u003e: Always keep a small sample for reference. When scaling up, use consistent testing to ensure batch-to-batch repeatability.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ol\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286211789171,"sku":"RMPOTCAR-1","price":3.25,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67286211821939,"sku":"RMPOTCAR-5","price":15.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286211854707,"sku":"RMPOTCAR-10","price":30.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286211887475,"sku":"RMPOTCAR-25","price":72.5,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":45105277763906,"sku":"RMPOTCAR","price":130.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/potassiumcarb__23290.1585688843.jpg?v=1693515476"},{"product_id":"potassium-nitrate-5-pounds-rmpotnit","title":"Potassium Nitrate","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003ePotassium Nitrate \u003cbr\u003e\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286212084083,"sku":"RMPOTNIT-1","price":3.65,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":45105278779714,"sku":"RMPOTNIT","price":17.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286212116851,"sku":"RMPOTNIT-10","price":34.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286212149619,"sku":"RMPOTNIT-25","price":82.5,"currency_code":"USD","in_stock":true},{"title":"55 Pounds","offer_id":67286212182387,"sku":"RMPOTNIT-55","price":165.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/5pn_1635_L_99c5908d-fd06-4768-b7f8-8d0c3374f64a.jpg?v=1791876105"},{"product_id":"remblend-kaolin-50-lb-bag-rmremkao","title":"Remblend Kaolin","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eRemblend kaolin.\u003cbr\u003e\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286244950387,"sku":"RMREMKAO-1","price":2.25,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67286244983155,"sku":"RMREMKAO-5","price":10.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286245015923,"sku":"RMREMKAO-10","price":20.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286245048691,"sku":"RMREMKAO-25","price":47.5,"currency_code":"USD","in_stock":true},{"title":"55 Pounds","offer_id":45105279729986,"sku":"RMREMKAO","price":68.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/MFCKB_2_400x_9ee3b24d-b7d5-4f04-8d2f-3eaeee062e75.jpg?v=1693515699"},{"product_id":"rutile-granular-one-pound-rmrutgra","title":"Rutile, Granular","description":"\u003cp\u003e\u003cstrong\u003eCoarse rutile grains for speckles and flecks of color in glazes and clay.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eRutile is a natural mineral: titanium dioxide with some iron. Ground to a powder, it's famous for streaky, variegated \"rutile\" glazes. This granular grade is coarse, so instead of blending in, the grains leave small dark speckles and bursts of color.\u003c\/p\u003e\n\u003ch3\u003eGetting started\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStart at 0.5 to 1% (half a gram to 1 gram per 100 grams of dry glaze) and test.\u003c\/li\u003e\n\u003cli\u003eStir it in after you sieve the glaze, or the sieve will catch the grains.\u003c\/li\u003e\n\u003cli\u003eA small amount in a clay body gives a speckled stoneware look.\u003c\/li\u003e\n\u003cli\u003eWant the smooth, streaky rutile look instead? That comes from powdered rutile, not granular.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFor glaze formulators\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eNatural rutile, mostly TiO₂ with iron. Because it's mined, its iron and titanium content varies from lot to lot.\u003c\/li\u003e\n\u003cli\u003eThe grains partly melt and bleed color around each speck; hotter firings and more fluid glazes bleed more.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLow toxicity, but don't breathe the dust. Wear a NIOSH-approved respirator (N95 or better) when handling it, and clean up with a wet sponge, not a broom.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSizes \u0026amp; pricing\u003c\/h3\u003e\n\u003ctable style=\"width:100%;max-width:520px;border-collapse:collapse;border:0;margin:0 0 14px;font-variant-numeric:tabular-nums;line-height:1.35;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:left;width:40%;\"\u003eSize\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003ePrice\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003ePer lb\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e1 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$13.55\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$13.55\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=45105281302850\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e5 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$62.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$12.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286164832627\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e10 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$120.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$12.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286164865395\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e25 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$287.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$11.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286164898163\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;font-weight:700;\"\u003e100 lb bag\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;font-weight:700;\"\u003e$1,040.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;font-weight:700;\"\u003e$10.40\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286164930931\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"max-width:520px;margin:0 0 12px;padding:12px 14px;border-radius:8px;background:#eef3ee;border:1px solid #d6e3d7;\"\u003e\n\u003cp style=\"margin:0 0 6px;\"\u003e\u003cstrong\u003eFull bags mix and match.\u003c\/strong\u003e Every full bag in your order, of any raw material, adds up. That total sets the price of every bag. Smaller sizes don't count.\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003eThis bag's price stays the same at every level, but it still counts toward your full-bag total.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin:0;font-size:13px;color:#6b6259;\"\u003ePrices from our October 23, 2026 price list.\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":45105281302850,"sku":"RMRUTGRA","price":13.55,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67286164832627,"sku":"RMRUTGRA-5","price":62.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286164865395,"sku":"RMRUTGRA-10","price":120.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286164898163,"sku":"RMRUTGRA-25","price":287.5,"currency_code":"USD","in_stock":true},{"title":"100 Pounds","offer_id":67286164930931,"sku":"RMRUTGRA-100","price":1040.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/Granular-Rutile-e1737983700843_ef5cb673-e6ab-45a8-b5df-8e847a2d8011.jpg?v=1791876105"},{"product_id":"titanium-dioxide-1-pound-rmtitdio","title":"Titanium Dioxide","description":"\u003cp\u003e\u003cstrong\u003ePure titanium for soft, creamy whites, satin surfaces and variegated, crystal-flecked glazes.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch3\u003eWhat it is\u003c\/h3\u003e\n\u003cp\u003eA bright white powder. In a glaze it gives soft, semi-opaque whites and creams, and it can grow tiny crystals as the glaze cools, giving a variegated, satin look. It's the pure form of the titanium found in rutile, without rutile's iron.\u003c\/p\u003e\n\u003ch3\u003eGetting started\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eFor a soft white or semi-opaque look, start at about 5% (5 grams per 100 grams of dry glaze).\u003c\/li\u003e\n\u003cli\u003eAround 8 to 10%, glazes tend to go satin or matte.\u003c\/li\u003e\n\u003cli\u003eWith iron it gives creams and warm yellows.\u003c\/li\u003e\n\u003cli\u003eFor a bright, solid white, tin oxide or a zircon opacifier like Ultrox works better. Titanium whites are creamier.\u003c\/li\u003e\n\u003cli\u003eIt's not a one-for-one swap for rutile. Rutile carries iron and gives more color and movement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFor glaze formulators\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTitanium dioxide, TiO₂.\u003c\/li\u003e\n\u003cli\u003ePromotes crystal growth and variegation on cooling, especially in fluid glazes and slow cools.\u003c\/li\u003e\n\u003cli\u003eIn boron-rich glazes it can produce bluish, milky streaks.\u003c\/li\u003e\n\u003cli\u003eOpacifies less strongly per gram than tin or zircon, and warms whites toward cream.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSafety\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLow toxicity, but don't breathe the dust. Wear a NIOSH-approved respirator (N95 or better) when handling it dry, and clean up with a wet sponge, not a broom.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSizes \u0026amp; pricing\u003c\/h3\u003e\n\u003ctable style=\"width:100%;max-width:520px;border-collapse:collapse;border:0;margin:0 0 14px;font-variant-numeric:tabular-nums;line-height:1.35;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:left;width:40%;\"\u003eSize\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003ePrice\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003ePer lb\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e1 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$6.85\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$6.85\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=45105285464386\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e5 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$33.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$6.70\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286165389683\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e10 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$66.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$6.60\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286165422451\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e25 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$162.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$6.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286165455219\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;font-weight:700;\"\u003e55 lb bag\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;font-weight:700;\"\u003e$341.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;font-weight:700;\"\u003e$6.20\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e\u003ca href=\"\/cart\/add?id=67286165487987\u0026amp;quantity=1\" style=\"color:#2340a8;font-weight:600;font-size:13px;text-decoration:none;white-space:nowrap;\"\u003eAdd to cart\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cdiv style=\"max-width:520px;margin:0 0 12px;padding:12px 14px;border-radius:8px;background:#eef3ee;border:1px solid #d6e3d7;\"\u003e\n\u003cp style=\"margin:0 0 10px;\"\u003e\u003cstrong\u003eFull bags mix and match.\u003c\/strong\u003e Every full bag in your order, of any raw material, adds up. That total sets the price of every bag. Smaller sizes don't count.\u003c\/p\u003e\n\u003ctable style=\"width:100%;max-width:520px;border-collapse:collapse;border:0;margin:0;font-variant-numeric:tabular-nums;line-height:1.35;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:left;width:46%;\"\u003eFull bags in your order\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003ePrice per 55 lb bag\u003c\/th\u003e\n\u003cth style=\"padding:0 0 6px;border:0;border-bottom:2px solid #d9d0c4;background:transparent;font-size:12px;letter-spacing:.06em;text-transform:uppercase;font-weight:600;color:#6b6259;text-align:right;padding-left:12px;\"\u003ePer lb\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003eUnder 500 lb\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$341.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$6.20\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e500 lb and up\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$334.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$6.08\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e2,000 lb and up\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$327.50\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$5.95\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e6,000 lb and up\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$321.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$5.84\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:left;\"\u003e12,000 lb and up\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;\"\u003e$314.00\u003c\/td\u003e\n\u003ctd style=\"padding:7px 0;border:0;border-bottom:1px solid #e6dfd5;background:transparent;text-align:right;padding-left:12px;color:#6b6259;\"\u003e$5.71\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin:0;font-size:13px;color:#6b6259;\"\u003ePrices from our October 23, 2026 price list.\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":45105285464386,"sku":"RMTITDIO","price":6.85,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67286165389683,"sku":"RMTITDIO-5","price":33.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286165422451,"sku":"RMTITDIO-10","price":66.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286165455219,"sku":"RMTITDIO-25","price":162.5,"currency_code":"USD","in_stock":true},{"title":"55 Pounds","offer_id":67286165487987,"sku":"RMTITDIO50","price":341.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/81tuYvro6kL_83d9ec0b-eb37-4ae7-b4e3-fcf6ea163b29.jpg?v=1791876106"},{"product_id":"treviscoe-rmtrevis","title":"Treviscoe Kaolin","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eTreviscoe Kaolin 55 Lb Bag\u003cbr\u003e\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286252421491,"sku":"RMTREVIS-1","price":1.15,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67286252454259,"sku":"RMTREVIS-5","price":5.0,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286252487027,"sku":"RMTREVIS-10","price":9.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286252519795,"sku":"RMTREVIS-25","price":20.0,"currency_code":"USD","in_stock":true},{"title":"55 Pounds","offer_id":45105285955906,"sku":"RMTREVIS","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/products\/RMTREVIS-2.jpg?v=1683796651"},{"product_id":"wollastonite-w-10-200m-5-pound-bag-rmwolw10","title":"Wollastonite W-10 (200 Mesh)","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eWollastonite W-10 200M\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"5 Pounds","offer_id":45105288085826,"sku":"RMWOLW10","price":9.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286206316915,"sku":"RMWOLW10-10","price":18.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286206349683,"sku":"RMWOLW10-25","price":42.5,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67286206382451,"sku":"RMWOLW10-50","price":41.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/products\/RMWOLW10-2.jpg?v=1683796675"},{"product_id":"old-hickory-number-1-glaze-clay-rm1gla","title":"Old Hickory #1 Glaze Clay","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eOld Hickory Number 1 GLAZE CLAY\u003c\/h2\u003e\n\u003cp\u003eOld Hickory ball clay is a very high kaolin bearing selection with extremely low levels of carbon content. It provides excellent suspension to all types of glazes especially glazes containing a high percentage of frit which has soluble alkali. Number 1 Glaze provides viscosity control range and excellent rheology for all glaze application methods and especially bell or cone applications processes.\u003c\/p\u003e\n\u003cp\u003eOld Hickory ball clay is domestically and internationally accepted as the best clay for all glaze applications. The \u003cspan style=\"font-weight: bold;\"\u003eNo. 1 Glaze\u003c\/span\u003e clay is virtually carbon free (less than 0.1%) yet provides film strength that can withstand all overglaze techniques.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eNo. 1 Glaze\u003c\/span\u003e clay has excellent suspension qualities which provide extended shelf-life for unused glaze. The high suspension value of the \u003cspan style=\"font-weight: bold;\"\u003eNo. 1 Glaze\u003c\/span\u003e clay combined with the excellent strength allows you to minimize, or eliminate expensive additives such as gums or binders.\u003c\/p\u003e\n\u003cp\u003eOld Hickory ball clay has excelled in spraying, dipping, brushing, discoing and bell waterfall applications.\u003c\/p\u003e\n\u003cp\u003eIt is a ball clay mined in Kentucky . It is a fine ball clay (\u0026lt; 55%, \u0026lt;1 micron) used in clay bodies to add plasticity and improve strength. In a glaze, it is a source of Alumina and will enhance glaze suspension (see also Ball Clay). It is recommended by Ferro for use in fritted glazes.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"http:\/\/www.oldhickoryclay.com\/pdf_files\/MSDS_Ball_Clay.pdf\" title=\"Ball clay msds\" target=\"_blank\"\u003eClick here for MSDS\u003c\/a\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"responsive-table\"\u003e\n\u003ctable align=\"center\" border=\"1\" cellpadding=\"1\" height=\"386\" width=\"454\"\u003e\n\u003ctbody\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd width=\"339\"\u003e\u003cspan class=\"style22\"\u003eRAW PROPERTIES\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"99\"\u003e\u003cspan class=\"style23\"\u003e \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style22\"\u003eCrude Color\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003eWhite \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style22\"\u003eDry Sieve Residue, +80 mesh (%)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e0.40 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style22\"\u003eWet Sieve Residue, +200 mesh (%)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e0.39 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style22\"\u003eWet Sieve Residue, +325 mesh (%)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e0.34 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style22\"\u003eNature of Residue\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003eHigh Purity Quartz \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style22\"\u003eWater of Plasticity (%)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e31 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style22\"\u003eLinear Drying Shrinkage (%)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e5.8 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style22\"\u003eSoluble Sulfates (ppm)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e160 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style22\"\u003eSpecific Surface Area (m2\/g)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e18.0 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style22\"\u003eCEC\/MBI(meq\/100 ml)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e7.1 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style22\"\u003epH\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e5.9 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003ctbody\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e\u003cspan style=\"font-weight: bold;\"\u003eParticle Size (% less than)\u003c\/span\u003e \u003cbr\u003e 5 Micron\u003cbr\u003e 1 Micron\u003cbr\u003e .5 Micron \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e\u003cbr\u003e 87\u003cbr\u003e 63\u003cbr\u003e 52 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003eMedian Particle Diameter (Micron)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e0.37 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003eCoefficient of Linear Expansion, x 10 -6 (50-500 degrees C)*\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e5.90 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003ePercent Linear Expansion, (500 degrees C)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e0.277 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cspan style=\"font-weight: bold;\"\u003e \u003c\/span\u003e\n\u003cdiv align=\"center\"\u003e\n\u003cspan class=\"style15\"\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003e*Prefired 1200 degrees C \u003c\/span\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003cbr\u003e \u003cbr\u003e \u003cspan style=\"font-weight: bold;\"\u003eChemical Analysis \u0026amp; Mineralogical Analysis\u003c\/span\u003e\u003cbr\u003e \u003cspan class=\"style12\"\u003e(Feldspar Rational Analysis Method)\u003c\/span\u003e \u003c\/span\u003e\u003c\/span\u003e\u003cspan style=\"font-weight: bold;\"\u003e\u003cbr\u003e \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cspan style=\"font-weight: bold;\"\u003e \u003c\/span\u003e\n\u003cdiv class=\"responsive-table\"\u003e\n\u003ctable align=\"center\" border=\"1\" cellpadding=\"1\" cellspacing=\"2\" width=\"350\"\u003e\n\u003ctbody\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cstrong\u003e\u003cspan class=\"style22\"\u003eSilicon Dioxide\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e56.32 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003eAluminum Oxide\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e29.37 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003eIron Oxide\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e0.87 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003eTitanium Dioxide\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e2.44\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003eCalcium Oxide\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e0.10 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003eMagnesium Oxide\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e0.28 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003eSodium Oxide\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e0.10 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003ePotassium Oxide\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e028 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003eLoss on Ignition\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e9.91 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003eCarbon(%)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e0.08 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003eSulfur (ppm)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e73 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003eKaolinite\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e70.8 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003eQuartz\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e22.4 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003eFeldspar\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e4.5 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003eOrganic\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e0.0 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr valign=\"top\"\u003e\n\u003ctd\u003e\u003cspan class=\"style23\" style=\"font-weight: bold;\"\u003eMisc. Trace Minerals\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan class=\"style23\"\u003e2.3 \u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e","brand":"Old Hickory Clay","offers":[{"title":"5 Pounds","offer_id":67286236725619,"sku":"RM1GLA-5","price":6.0,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":45113682067778,"sku":"RM1GLA","price":11.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286236758387,"sku":"RM1GLA-25","price":25.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67286236791155,"sku":"RM1GLA-50","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/RM1GLA-2_d67df39b-feb6-43f1-be49-d7b8f535e5ab.jpg?v=1791876653"},{"product_id":"1-qrock-white-silica-sand-grog-50-pounds-rm1white50","title":"#1 Qrock White Silica Sand (Grog)","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003c\/span\u003e#1 White silica sand  Qrock\u003cbr\u003eCoarse (approx 40 mesh)\u003cbr\u003eUsed as a grog in some clay bodies.\u003cbr\u003e","brand":"Sheffield Pottery","offers":[{"title":"5 Pounds","offer_id":67286306455923,"sku":"RM1WHITE-5","price":5.75,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286306488691,"sku":"RM1WHITE","price":10.5,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286306521459,"sku":"RM1WHITE-25","price":23.75,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":45113682559298,"sku":"RM1WHITE50","price":23.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/large-sand_silica_30m.jpg?v=1724425926"},{"product_id":"6-tile-clay-50-pound-bag-rm6tile50","title":"#6 Tile Clay","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003e#6 tile clay.\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"5 Pounds","offer_id":67286252585331,"sku":"RM6TILE5","price":7.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286252618099,"sku":"RM6TILE-10","price":14.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286252650867,"sku":"RM6TILE-25","price":32.5,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":45113682985282,"sku":"RM6TILE50","price":32.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/30325__05408.jpg?v=1723660174"},{"product_id":"barium-carbonate-5-pounds-rmbarcar","title":"Barium Carbonate","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eBARIUM CARBONATE\u003c\/h2\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eBarium Carbonate—Type FF\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eDESCRIPTION\u003cbr\u003eBarium Carbonate: (BaCO3)\u003cbr\u003eAppearance: White powder\u003c\/p\u003e\n\u003cp\u003eBarium Carbonate BaCO3, is a major raw material in the manufacture of porcelain enamel frits, glazes, ferrite magnets, barium titanate, barium sulfate, miscellaneous barium chemicals and various types of glass including television picture tubes, reflective glass beads and other specialty scientific, optical and art glasses.\u003c\/p\u003e\n\u003cp\u003eIt is also used for the precipitation and removal of sulfates in various chemical processes and for the prevention of scum in the manufacture of face brick.\u003c\/p\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eCHEMICAL PROPERTIES\u003c\/h2\u003e\n\u003cb\u003eProperty Specification Limits\u003c\/b\u003e\u003cbr\u003eBaCO3 + SrCO3 , % 99 min.\u003cbr\u003eSrCO3H, % 2.5 max.\u003cbr\u003eIron as Fe, ppm 40 max.\u003cbr\u003eSulfur as S , % 0.1 max.\u003cbr\u003eNa2CO3,% 0.9 max.\u003cbr\u003e+325 mesh US\/TY mesh, % 1.0 max.\u003cbr\u003eMoisture , % 0.25 max.","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286206939507,"sku":"RMBARCAR-1","price":6.3,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":45113693143362,"sku":"RMBARCAR","price":29.0,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286206972275,"sku":"RMBARCAR-10","price":57.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286207005043,"sku":"RMBARCAR-25","price":140.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67286207037811,"sku":"RMBARCAR50","price":139.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/Untitleddesign_0a7ec555-d0ad-46fa-baaa-e77ab507f255.jpg?v=1696607227"},{"product_id":"bentonite-hpm-20-5-pound-bag-rmbenhpm20lb","title":"Bentonite HPM-20","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eBentonite Hpm-20 : 5 pound bag\u003c\/h2\u003e\n\u003cp\u003eHigh-purity, air-classified sodium bentonite, selectively-mined, consisting of Description micronized particles and supplied as a free-flowing powder. \u003cbr\u003eThis high-purity montmorillonite is typically used as a suspending agent, viscosifier, Use binder, and emulsion stabilizer.\u003c\/p\u003e\n\u003cp\u003eHydrous aluminum silicate, air purified to concentrate the finest montmorillonite fraction from the bentonite ore.\u003c\/p\u003e\n\u003cp\u003eContains traces of feldspar, quartz, calcite, and gypsum. Insoluble in water or alcohol; one gram of clay produces a surface area greater than 750 sq. meters when fully dispersed.\u003c\/p\u003e\n\u003cp\u003eMoisture 12% maximum as shipped \u003cbr\u003eTexture Soft, slippery \u003cbr\u003eViscosity 8-30 cps @ 6.25% solids \u003cbr\u003eOdor None \u003cbr\u003eSpecific Gravity 2.6 \u003cbr\u003eTaste None \u003cbr\u003eColor Gray to Tan \u003cbr\u003epH 8.5-10.5 @ 2% solids\u003c\/p\u003e\n\u003cp\u003eDry Particle Minimum 99.00% finer than 200 mesh (74 microns). \u003cbr\u003eSize Wet Particle Minimum 99.75% finer than 200 mesh (74 microns). \u003cbr\u003eSize Minimum 99.00% finer than 325 mesh (44 microns). \u003cbr\u003eChemical Dioctahedral smectite, an expanding layer silicate: \u003cbr\u003eFormula (Na,Ca)0.33 (Al1.67Mg0.33)Si4O10(OH)2 . nh4O \u003cbr\u003eElemental Typical analysis – moisture free. \u003cbr\u003e\u003c\/p\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eComposition\u003c\/h2\u003e\nSiO2 69.56% \u003cbr\u003e Al2O3 20.69% \u003cbr\u003e MgO 2.70% \u003cbr\u003e Fe2O3 4.85% \u003cbr\u003e CaO 1.30% \u003cbr\u003e Na2O 2.43% \u003cbr\u003e K2O 0.30% \u003cbr\u003e LOI 4.80%","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286262219123,"sku":"RMBENHPM20-1","price":2.35,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":45113695371586,"sku":"RMBENHPM20LB","price":11.0,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286262251891,"sku":"RMBENHPM20-10","price":21.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286262284659,"sku":"RMBENHPM20-25","price":50.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67286262317427,"sku":"RMBENHPM20","price":84.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/il_680x540.1779897021_63vr_65b00598-c31a-4ce3-b0c6-583cb69bd962.jpg?v=1791876654"},{"product_id":"bentonite-rmbenvol20050","title":"Bentonite, Volclay 200 Mesh","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eBENTONITE, Volclay 200 Mesh 325 MESH\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eBENTONITE, Volclay 200 Mesh. For glaze making and clay conditioning. \u003cbr\u003e One pound price shown. \u003cbr\u003e Choose 1, 5, 10, or 25 pound increments for bulk savings. \u003cbr\u003e Please call us to order more than 100 lbs. (1.888.774-2529)\u003cbr\u003e\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286261858675,"sku":"RMBENVOL200-1","price":1.75,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67286261891443,"sku":"RMBENVOL200","price":6.25,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286261924211,"sku":"RMBENVOL200-10","price":11.5,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286261956979,"sku":"RMBENVOL200-25","price":26.25,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":45113696354626,"sku":"RMBENVOL20050","price":26.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/200M_Bentonite_2_955313d0-b6c7-45e2-83ed-e37c0aee093d.jpg?v=1791876660"},{"product_id":"bentonite-rmbenvol3255","title":"Bentonite, Volclay 325 Mesh","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cb\u003e\\VOLCLAY 325 MESH\u003cbr\u003eGeneral A selectively-mined and processed sodium bentonite. Volclay 325 mesh\u003cbr\u003eDescription is a true micronized product that produces consistency and performance.\u003cbr\u003eFunctional Multi-purpose suspending, emulsifying, and binding agent used in industrial\u003cbr\u003eUse applications where low grit and a small, dry particle size are required.\u003cbr\u003eChemical Dioctahedral smectite, an expanding layer silicate:\u003cbr\u003eFormula (Na,Ca)0.33\u003cbr\u003e(Al1.67Mg0.33)Si4O10(OH)2\u003cbr\u003e.nh4O\u003cbr\u003eElemental Typical analysis – moisture free.\u003cbr\u003eComposition\u003cbr\u003eSiO2 63.02 %\u003cbr\u003eAl2O3 21.08 %\u003cbr\u003eFe2O3 3.25 %\u003cbr\u003eFeO 0.35 %\u003cbr\u003eMgO 2.67 %\u003cbr\u003eNa2O 2.57 %\u003cbr\u003eCaO 0.65 %\u003cbr\u003eTrace 0.72 %\u003cbr\u003eLOI 5.64 %\u003cbr\u003eMoisture Maximum 12% as shipped.\u003cbr\u003eDry Particle Minimum 96% passing 200 mesh (74 microns).\u003cbr\u003eSize\u003cbr\u003eWet Particle Minimum 97% passing 200 mesh (74 microns).\u003cbr\u003eSize Minimum 90% passing 325 mesh (44 microns).\u003cbr\u003epH 8.5 to 10.5 @ 5% solids.\u003cbr\u003eViscosity 12 cps minimum @ 6.25% solids.BENTONITE, Volclay 325 Mesh : 50 Pound Bags 325 MESH\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eBENTONITE, Volclay 325 Mesh : 50 Pound Bags. For glaze making and clay conditioning. \u003cbr\u003eMany levels of multi bag discounts available: Please call us to order  more than 100 lbs.(1.888.774-2529)\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286262055283,"sku":"RMBENVOL325-1","price":2.0,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":45113696813378,"sku":"RMBENVOL3255","price":7.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286262088051,"sku":"RMBENVOL325-10","price":14.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286262120819,"sku":"RMBENVOL325-25","price":32.5,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67286262153587,"sku":"RMBENVOL32550","price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/B-Volacy_75fef532-e473-4214-b182-cbab6f8f42be.png?v=1791876654"},{"product_id":"barnard-blackbird-clay-substitute-rmblasubsg758","title":"Barnard Blackbird Clay Substitute (SG758)","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eBARNARD BLACKBIRD SUBSTITUTE SG758 10lb Bag\u003c\/h2\u003e\n\u003cp\u003e10 Pound Bag:Please call 888.774-2529 to order smaller or larger quantities of this Barnard clay substitute.\u003c\/p\u003e\n\u003cp\u003eThis is a blend of minerals that closely simulates Barnard (Blackbird) Clay, a widely used clay that contains iron and manganese.\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv class=\"responsive-table\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eTypical analysis:\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSiO\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/td\u003e\n\u003ctd\u003e30.37%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFe\u003csub\u003e2\u003c\/sub\u003eO\u003csub\u003e3\u003c\/sub\u003e\n\u003c\/td\u003e\n\u003ctd\u003e26.27%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAl\u003csub\u003e2\u003c\/sub\u003eO\u003csub\u003e3\u003c\/sub\u003e\n\u003c\/td\u003e\n\u003ctd\u003e20.52%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMnO\u003c\/td\u003e\n\u003ctd\u003e8.72%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eK\u003csub\u003e2\u003c\/sub\u003eO\u003c\/td\u003e\n\u003ctd\u003e1.68%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCaO\u003c\/td\u003e\n\u003ctd\u003e0.59%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMgO\u003c\/td\u003e\n\u003ctd\u003e1.07%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTiO\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/td\u003e\n\u003ctd\u003e1.06%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNaO\u003c\/td\u003e\n\u003ctd\u003e0.52%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLOI\u003c\/td\u003e\n\u003ctd\u003e8.85%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003eThis material was developed to mimic the effects of Barnard clay when used as a wash or when used in clay body formulations. Though it can be added to glazes as a substitute material, its effects may vary from the original.\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"5 Pounds","offer_id":67286260220275,"sku":"RMBLASUBSG758-5","price":36.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":45113697009986,"sku":"RMBLASUBSG758","price":72.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286260253043,"sku":"RMBLASUBSG758-25","price":177.5,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67286260285811,"sku":"RMBLASUBSG758-50","price":177.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/B-Bl-Cl_b10a9bd6-bdd4-4b9f-a927-f9f0bd47291a.png?v=1791876654"},{"product_id":"boric-acid-granular-10-pounds-rmboracig","title":"Boric Acid, Granular","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eBoric Acid, granular.\u003cbr\u003e\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67294139974003,"sku":"RMBORACIG-1","price":2.0,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67294140006771,"sku":"RMBORACIG-5","price":9.25,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":45113697239362,"sku":"RMBORACIG","price":17.5,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67294140039539,"sku":"RMBORACIG-25","price":41.25,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67294140072307,"sku":"RMBORACIG-50","price":66.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/Bo_ac.png?v=1696619469"},{"product_id":"borax-granular-10-pounds-rmboraxg","title":"Borax, Granular","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eBORAX, GRANULAR  10 Pounds\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286211068275,"sku":"RMBORAXG-1","price":2.2,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67286211101043,"sku":"RMBORAXG-5","price":10.25,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":45113697304898,"sku":"RMBORAXG","price":19.5,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286211133811,"sku":"RMBORAXG-25","price":46.25,"currency_code":"USD","in_stock":true},{"title":"100 Pounds","offer_id":67286211166579,"sku":"RMBORAXG-100","price":155.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/Borax_35debd81-00d8-4cbd-86bb-d768508c927c.png?v=1791876655"},{"product_id":"burgess-iceberg-calcined-kaolin-50-pounds-dry-rmcalice","title":"Burgess Iceberg Calcined Kaolin","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eBurgess Iceberg Calcined KAOLIN 50 pounds dry\u003c\/h2\u003e\n\u003cp\u003eA sub for GLOMAX or any other calcined kaolin for glaze and clay body formulas and recipes.\u003c\/p\u003e\n\u003cp\u003eOther applications: Burgess Iceberg Calcined KAOLIN is a conventionally calcined median pa rticle size 91-93 GE Brightness clay used as an extender of TiO2 in trade sales interior\/exterior flat paints, filler\/extender in flexible PVC having aesthetics rather than electrical requirements, EPDM wire and cable insulation compound, pharmaceutical rubber, and filler in polyurethane sealants.\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"5 Pounds","offer_id":67286244196723,"sku":"RMCALICE-5","price":14.0,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286244229491,"sku":"RMCALICE-10","price":27.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286244262259,"sku":"RMCALICE-25","price":65.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":45113697567042,"sku":"RMCALICE","price":64.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/Untitleddesign_5.jpg?v=1696620706"},{"product_id":"cm-flint-grog-12-20-coarse-10-pounds-rmcmfg122050","title":"CM Flint Grog 12-20 (Coarse)","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 class=\"abz-seo-product\"\u003e\u003cspan style=\"font-family: Verdana;\"\u003eCm Flint Grog 12-20 (coarse) : 50 pounds\u003c\/span\u003e\u003c\/h2\u003e\n\u003cdiv data-canvas-width=\"258.23999999999995\" data-font-name=\"Times\" dir=\"ltr\" style=\"font-size: 16px; font-family: serif; left: 264px; top: 328.16px; transform: scale(1.08962, 1); transform-origin: 0% 0% 0px;\"\u003e\u003cspan style=\"font-family: Verdana;\"\u003eA calcined fireclay with high refractoriness, low alkalis and iron, and a low cristobalite content. This material is ideally suited for the refractory industry for manufacturing bricks, castable, and plastic. It is also used in the pottery and terra cotta industries as a grog in a variety of bodies formulations.\u003c\/span\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"5 Pounds","offer_id":67288213848435,"sku":"RMCMFG1220-5","price":7.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67288213881203,"sku":"RMCMFG1220","price":14.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67288213913971,"sku":"RMCMFG1220-25","price":32.5,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":45113699762498,"sku":"RMCMFG122050","price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/hawthorn__53161.jpg?v=1696622407"},{"product_id":"cm-flint-grog-8-20-extra-coarse-50-lb-rmcmfg820","title":"CM Flint Grog 8-20 (Extra Coarse)","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eCm flint grog 8-20 (extra coarse)\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"5 Pounds","offer_id":67294140367219,"sku":"RMCMFG820-5","price":7.25,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67294140399987,"sku":"RMCMFG820-10","price":13.5,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67294140432755,"sku":"RMCMFG820-25","price":31.25,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":45113699959106,"sku":"RMCMFG820","price":31.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/hawthorn__53161_53f44058-304a-4b7e-a0b7-1782e3486be1.jpg?v=1696622453"},{"product_id":"hamill-gilespie-cornwall-stone-50-pounds-rmcorstohg","title":"Cornwall Stone (Hammill \u0026 Gillespie)","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eH\u0026amp;G Cornwall Stone\u003c\/h2\u003e\nHammill \u0026amp; Gillespie, a supplier of specialty clays and minerals, has found a substitute named H\u0026amp;G Cornwall Stone which can be used as a replacement in most glaze formulas. It is always best to test any new material, however, before committing to large scale production.\u003cbr\u003e\u003cbr\u003e Click here for the article from Ceramics Technical by Jeff Zamek about the differences and similarities of the original and the new: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/HG-Cornwall-Stone.pdf?v=1685969503\"\u003ehttps:\/\/www.sheffield-pottery.live\/v\/vspfiles\/downloadables\/HG-Cornwall-Stone.pdf \u003c\/a\u003e\u003ciframe src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/HG-Cornwall-Stone.pdf?v=1685969503\" height=\"”800px;”\" width=\"”100%;”\"\u003e\u003c\/iframe\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286202089843,"sku":"RMCORSTOHG-1","price":3.4,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":45113707004226,"sku":"RMCORSTOHG","price":16.25,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286202122611,"sku":"RMCORSTOHG-10","price":31.5,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286202155379,"sku":"RMCORSTOHG-25","price":76.25,"currency_code":"USD","in_stock":true},{"title":"55 Pounds","offer_id":67286202188147,"sku":"RMCORSTOHG55","price":111.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/large-Cornwall_stone_sub.jpg?v=1696617509"},{"product_id":"english-grolleg-55-pound-bag-rmenggro55","title":"English Grolleg Kaolin","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003ch2 class=\"abz-seo-product\"\u003eENGLISH GROLLEG\u003c\/h2\u003e\u003cp\u003eGrolleg™ is a blend of English china clay mined in a specific region \nof Cornwall in the UK.  The chemistry of this product is what makes this kaolin so special.  Low levels of titania provide unrivaled translucency that cannot be found in domestic Kaolins.  A high flux content means \nyou can use more clay and less feldspar, making up for lower \nplasticity.  Grolleg is truly a high performance kaolin, with excellent\n fired whiteness, strength for plastic making, and good fluidity for \ncasting applications.\u003c\/p\u003e\n\u003cp\u003eYou will find Grolleg in formulations for pottery, tableware, and \nelectrical porcelain production.  With clay reserves conservatively \nestimated at between 25 to 30 years, this clay will be available for \nyears to come.  \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286244327795,"sku":"RMENGGRO-1","price":2.45,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67286244360563,"sku":"RMENGGRO-5","price":11.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286244393331,"sku":"RMENGGRO","price":22.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286244426099,"sku":"RMENGGRO-25","price":52.5,"currency_code":"USD","in_stock":true},{"title":"55 Pounds","offer_id":45113708609858,"sku":"RMENGGRO55","price":77.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/RMENGGRO55-2_2f4f51e0-998f-441b-b483-21e246f41200.jpg?v=1791876657"},{"product_id":"flint-200m-sil-co-sil-75-rmfli20050","title":"Flint 200 Mesh (Sil-Co-Sil 75)","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eFLINT 200M \/ SIL-CO-SIL 75\u003c\/h2\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eGround Silica\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eSIL-CO-SIL\u003csup\u003e®\u003c\/sup\u003e Ground Silica\u003c\/span\u003e products are produced from high purity silica, precision ground from 125 to 45 micron topsize. Our ground silicas are inherently inert, bright white, with low moisture and are at least 99.5% Si0\u003csub\u003e2\u003c\/sub\u003e.\u003c\/p\u003e\n\u003cp\u003eFLINT - (SiO2) (m.p. 3119o F\/1715o C) is the dark porous variety of chert that contains organic matter (chert is a hard, extremely dense, dull to semi-glossy sedimentary rock which is microcrystalline to cryptocrystalline quartz). True flint is very fine (cryptocrystalline) hydrated silica (1% molecular bound water) and is less dense than Quartz Sand due to a fine porous structure. The name flint is a carry over from England and France in which the true flints were prepared by calcination and grinding. Many geologists and archeologists suggest that the term flint be discarded or used only to identify artifacts of prehistoric humans (see also Silica).\u003c\/p\u003e\n\u003cp\u003eSILICA - SiO2 (m.p. 3119oF\/1715oC) is second only to clay in significance as a ceramic material, and it is the most abundant mineral in the earth’s crust. The principal siliceous materials are: Crystalline Quartz, Quartzite, Sandstone, Silica Sand, “Organic” and Amorphous Silica: including Flint and Diatomaceous Earth. Silica is frequently referred to as “Potter’s Flint” and is often just ground sandstone. It is used interchangeably with Quartz. Silica or Quartz is used in clay bodies to modify shrinkage, porosity, and strength (these modifications are affected by particle size and crystallinity). Quartz has a phase transition at 1063o F\/573o C, i.e. the Quartz inversion. Upon firing, this inversion occurs rapidly and results in volume expansion, which can lead to firing cracks in clay bodies high in Free Quartz. In glazes, Silica is the most common glass former. It serves to control the fusibility and viscosity, which are dependent on the amount of Silica in the glaze. Typical mesh size of 200 (\u0026gt;74 microns), 325 (\u0026gt; 45 microns), and 400 (\u0026gt;30 microns) are offer varing applications in clay bodies and glazes. The coarser 200 mesh helps to control shrinkage while the finer 325 and 400 mesh are useful in glazes for their reactivity and ease of going into solution.\u003cbr\u003e\u003cimg style=\"width: 394px;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/flint-silcosil75-specs.jpg?v=1684313196\" border=\"0px\" alt=\"Flint sil-co-sil specs\" align=\"\"\u003e\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"5 Pounds","offer_id":67286305997171,"sku":"RMFLI200-5","price":10.0,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286306029939,"sku":"RMFLI200","price":19.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286306062707,"sku":"RMFLI200-25","price":45.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":45113709822274,"sku":"RMFLI20050","price":45.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/white-RMTITDIO-2T_7d43628e-76d0-43cc-97ec-4f0bcbee1cc7.jpg?v=1724092681"},{"product_id":"flint-325m-sil-co-sil-52-325-mesh-50-pound-bag-rmfli32550","title":"Flint 325 Mesh (Sil-Co-Sil 52)","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eFLINT 325M \/ SIL-CO-SIL 52\u003c\/h2\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eGround Silica\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eSIL-CO-SIL\u003csup\u003e®\u003c\/sup\u003e Ground Silica\u003c\/span\u003e products are produced from high purity silica, precision ground from 125 to 45 micron topsize. Our ground silicas are inherently inert, bright white, with low moisture and are at least 99.5% Si0\u003csub\u003e2\u003c\/sub\u003e.\u003c\/p\u003e\n\u003cp\u003eFLINT - (SiO2) (m.p. 3119o F\/1715o C) is the dark porous variety of chert that contains organic matter (chert is a hard, extremely dense, dull to semi-glossy sedimentary rock which is microcrystalline to cryptocrystalline quartz). True flint is very fine (cryptocrystalline) hydrated silica (1% molecular bound water) and is less dense than Quartz Sand due to a fine porous structure. The name flint is a carry over from England and France in which the true flints were prepared by calcination and grinding. Many geologists and archeologists suggest that the term flint be discarded or used only to identify artifacts of prehistoric humans (see also Silica).\u003c\/p\u003e\n\u003cp\u003eSILICA - SiO2 (m.p. 3119oF\/1715oC) is second only to clay in significance as a ceramic material, and it is the most abundant mineral in the earth’s crust. The principal siliceous materials are: Crystalline Quartz, Quartzite, Sandstone, Silica Sand, “Organic” and Amorphous Silica: including Flint and Diatomaceous Earth. Silica is frequently referred to as “Potter’s Flint” and is often just ground sandstone. It is used interchangeably with Quartz. Silica or Quartz is used in clay bodies to modify shrinkage, porosity, and strength (these modifications are affected by particle size and crystallinity). Quartz has a phase transition at 1063o F\/573o C, i.e. the Quartz inversion. Upon firing, this inversion occurs rapidly and results in volume expansion, which can lead to firing cracks in clay bodies high in Free Quartz. In glazes, Silica is the most common glass former. It serves to control the fusibility and viscosity, which are dependent on the amount of Silica in the glaze. Typical mesh size of 200 (\u0026gt;74 microns), 325 (\u0026gt; 45 microns), and 400 (\u0026gt;30 microns) are offer varying applications in clay bodies and glazes. The coarser 200 mesh helps to control shrinkage while the finer 325 and 400 mesh are useful in glazes for their reactivity and ease of going into solution.\u003cbr\u003e\u003cimg align=\"\" alt=\"Flint silcosil52 specs\" border=\"0px\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/flint-silcosil52-specs.jpg?v=1684313217\" style=\"width: 432px;\"\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"5 Pounds","offer_id":67286306095475,"sku":"RMFLI325-5","price":12.0,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286306128243,"sku":"RMFLI325","price":23.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286306161011,"sku":"RMFLI325-25","price":55.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":45113714049346,"sku":"RMFLI32550","price":54.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/FlintSilica325mF_1000x1000-transformed.jpg?v=1724426158"},{"product_id":"flint-400m-silcosil-40-50-pound-bag-rmfli40050","title":"Flint 400 Mesh (Min-U-Sil 40)","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eFLINT 400M \/ SILCOSIL 40 : 50 Pound Bag\u003cbr\u003e \u003cspan style=\"font-weight: bold;\"\u003eSIL-CO-SIL\u003csup\u003e®\u003c\/sup\u003e Ground Silica\u003c\/span\u003e products are produced from high purity silica, precision ground from 125 to 45 micron topsize. Our ground silicas are inherently inert, bright white, with low moisture and are at least 99.5% Si0\u003csub\u003e2\u003c\/sub\u003e.\u003c\/p\u003e\n\u003cp\u003eFLINT - (SiO2) (m.p. 3119o F\/1715o C) is the dark porous variety of chert that contains organic matter (chert is a hard, extremely dense, dull to semi-glossy sedimentary rock which is microcrystalline to cryptocrystalline quartz). True flint is very fine (cryptocrystalline) hydrated silica (1% molecular bound water) and is less dense than Quartz Sand due to a fine porous structure. The name flint is a carry over from England and France in which the true flints were prepared by calcination and grinding. Many geologists and archeologists suggest that the term flint be discarded or used only to identify artifacts of prehistoric humans (see also Silica).\u003c\/p\u003e\n\u003cp\u003eSILICA - SiO2 (m.p. 3119oF\/1715oC) is second only to clay in significance as a ceramic material, and it is the most abundant mineral in the earth’s crust. The principal siliceous materials are: Crystalline Quartz, Quartzite, Sandstone, Silica Sand, “Organic” and Amorphous Silica: including Flint and Diatomaceous Earth. Silica is frequently referred to as “Potter’s Flint” and is often just ground sandstone. It is used interchangeably with Quartz. Silica or Quartz is used in clay bodies to modify shrinkage, porosity, and strength (these modifications are affected by particle size and crystallinity). Quartz has a phase transition at 1063o F\/573o C, i.e. the Quartz inversion. Upon firing, this inversion occurs rapidly and results in volume expansion, which can lead to firing cracks in clay bodies high in Free Quartz. In glazes, Silica is the most common glass former. It serves to control the fusibility and viscosity, which are dependent on the amount of Silica in the glaze. Typical mesh size of 200 (\u0026gt;74 microns), 325 (\u0026gt; 45 microns), and 400 (\u0026gt;30 microns) are offer varing applications in clay bodies and glazes. The coarser 200 mesh helps to control shrinkage while the finer 325 and 400 mesh are useful in glazes for their reactivity and ease of going into solution.\u003cbr\u003e\u003cimg align=\"\" alt=\"Flint Sil co Sil Silica Specs\" border=\"0px\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/flint-silcosil-specs.jpg?v=1684313238\" style=\"width: 363px;\"\u003e\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"5 Pounds","offer_id":67286306226547,"sku":"RMFLI400-5","price":16.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286306259315,"sku":"RMFLI400","price":32.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286306292083,"sku":"RMFLI400-25","price":77.5,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":45113719554370,"sku":"RMFLI40050","price":76.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/products\/RMFLI40050-2.jpg?v=1683888611"},{"product_id":"foundry-hill-cream-ball-clay-50-pounds-rmfouhil50","title":"Foundry Hill Cream Ball Clay","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eFOUNDRY HILL CREAM BALL CLAY\u003c\/h2\u003e\n\u003cp\u003eFoundry Hill Cream Ball Clay 10 Pounds\u003cbr\u003eAn intermediate-grained ball clay blend offering excellent moisture retention and more plasticity. In plastic bodies, for example, the moisture retention means that items will dry slower and this can lead to a more even drying process. \u003c\/p\u003e\n\u003cp\u003ealthough mfg. say it can be used alone @ cone 10, this clay is highly plastic and shrinks excessively and feels sticky when used alone. Cream to buff in oxidation (low iron). Can be used w\/10% feldspar at cone 5‐6 for a throwing body but recommended to add grog for more tooth. The mine closed in 1989, but a new source is now available.\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"5 Pounds","offer_id":67286236594547,"sku":"RMFOUHIL-5","price":5.25,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286236627315,"sku":"RMFOUHIL","price":9.5,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286236660083,"sku":"RMFOUHIL-25","price":21.25,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":45113720701250,"sku":"RMFOUHIL50","price":21.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/30347__64217.1656726906.jpg?v=1696615641"},{"product_id":"frit-3124-hommel-90-50-pound-bag-rmfri3124","title":"Frit 3124","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eFrit 3124\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286213886323,"sku":"RMFRI3124-1","price":5.45,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":45113721061698,"sku":"RMFRI3124","price":26.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286213919091,"sku":"RMFRI3124-10","price":52.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286213951859,"sku":"RMFRI3124-25","price":127.5,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67286213984627,"sku":"RMFRI312450","price":127.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/large-3124_frit_pic.jpg?v=1696851464"},{"product_id":"frit-3195-hommel-399-50-pound-bag-rmfri3195","title":"Frit 3195","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eFrit 3195.\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286214181235,"sku":"RMFRI3195-1","price":6.65,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":45113721356610,"sku":"RMFRI3195","price":32.5,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286214214003,"sku":"RMFRI3195-10","price":64.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286214246771,"sku":"RMFRI3195-25","price":157.5,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67286214279539,"sku":"RMFRI319550","price":156.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/large-3195_frit_pic_734d39aa-5b30-4da8-820d-9487d1ec6425.jpg?v=1791876657"},{"product_id":"gillespie-borate-10-pounds-rmgilbor","title":"Gillespie Borate","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eGILLESPIE BORATE: 10 pounds: Gerstley Borate Substitute\u003c\/h2\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eGerstley Borate Substitute\u003c\/h2\u003e\n\u003cp\u003eGerstley Borate is no longer available.\u003cbr\u003eUse Gillespie Borate as a substitute.\u003cbr\u003eGerstley Borate was a highly variable material and could be different from batch to batch. Gillespie borate is manufactured to meet the most typical analysis of the Gerstley borate so you should find this to be a perfect substitute and more dependable.\u003cbr\u003ePlease test your formulas before using on your work.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: bold; text-decoration: underline;\" data-mce-style=\"font-weight: bold; text-decoration: underline;\"\u003eGillespie Borate Fact Sheet\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"font-weight: bold;\" data-mce-style=\"font-weight: bold;\"\u003eDescription\u003c\/span\u003e : Gillespie Borate™ is a blended borate mineral for use in glaze formulas replacing Gerstley Borate on a pound for pound basis.\u003cbr\u003eChemical Analysis [Typical]\u003cbr\u003e\u003cimg align=\"\" alt=\"Gillespie Borate Chemical Analysis\" border=\"0px\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/gillespie-borate-chemical-analysis.pg.jpg?v=1684313259\" style=\"width: 569px;\" data-mce-style=\"width: 569px;\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/gillespie-borate-chemical-analysis.pg.jpg?v=1684313259\"\u003e\u003cbr\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003cbr\u003e- Consistency -- Manufactured from high purity refined raw materials, Gillespie Borate™ is highly consistent from batch to batch.\u003cbr\u003e- Oxide Match -- Virtually identical to Gerstley Borate, this product requires no adjustment to formula and no extra additives are needed.\u003cbr\u003e- Mineral Match -- Gillespie Borate™ provides the same minerals to the glaze as Gerstley Borate, thus imparting the same glaze activity, texture and effects. \u003cbr\u003e- Particle Size Match -- As a -200 mesh material, Gillespie Borate™ combines well with other glaze raw materials.\u003cbr\u003e- Plasticity Match -- A high colloid and clay content gives the plasticity necessary for many applications.\u003cbr\u003e- Reduced Glaze Defects -- Our laboratory studies indicate that Gillespie Borate™ gives increased glaze surface smoothness and a reduction in crawling and pinhole defects.\u003cbr\u003e- Lower In Off-Color Impurities -- As a refined blended material, Gillespie Borate™ contains few impurities and produces brighter glazes and colors.\u003cbr\u003eApplications\u003cbr\u003e- Raku, Earthenware, Stoneware and Porcelain -- Excellent over a wide temperature range from below cone 06 to cone 10\u003cbr\u003e- Special Effects -- Excellent glaze texture and activity for specialty glazes.\u003cbr\u003e- Colored Glazes -- GB works well with most pigments and has an exceptionally wide color palette.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\" data-mce-style=\"text-decoration: underline;\"\u003eFinding a replacement for Gerstley Borate\u003c\/span\u003e\u003cbr\u003eGerstley borate is a complex ore but a major benefit of the unrefined naturally formed combination of minerals is its ability to produce variegated surfaces in glazes. Potter’s firing electric kilns which have oxidation atmospheres often produce flat static glaze effects much like bathroom tile colors. Carbon based fueled kilns, such as natural gas, propane or wood have the capacity to fire in oxidation, neutral, and reduction atmospheres which can introduce varied glaze colors and surfaces. If it wasn’t for this unique characteristic of Gerstley borate it would have been abandoned when the first series of its faults appeared.\u003cbr\u003eGerstley borate’s wide swings in chemical composition are a factor in finding a direct substitute. It’s like trying to hit a moving target when deciding on what chemical formula to use when developing a substitute.\u003cbr\u003eHowever, Gillespie borate, a product produced by Hammill \u0026amp; Gillespie of New Jersey, has proven to be a reliable one-for-one substitute. In many instances it is difficult to arrive at such a close match as many raw materials are not mineralogically pure when removed from the earth. Any potential substitute has to match on many points and produce the same results in fired glazes.\u003c\/p\u003e\n\u003cp\u003eGerstley Borate has been a valuable glaze constituent for many years and is a key part of many interesting and successful glazes over a range of firing conditions. As the supply has dwindled Hammill \u0026amp; Gillespie's technical staff went to the lab and began experimenting. Beginning with x-ray diffraction to determine the mineral constitution of Gerstley borate and following up with other physical and chemical tests, they fully characterized the material and identified three key characteristics: extended particle size distribution including a colloid fraction, a specific and unique distribution of oxides, and a fired property that promotes a variegated color in many glaze compositions.\u003cbr\u003eTo generate a replacement, a new material was created: Gillespie borate, which is virtually identical to Gerstley borate in terms of physical, mineralogical and chemical composition. Gillespie borate is comprised principally of ulexite (sodium calcium borate), with small amounts of colemanite (calcium borate) and other minerals -- just like Gerstley borate. From a pre-fired perspective the most critical element in the new material is its colloid content. Containing approximately 10% clay-like materials, Gillespie borate disperses well in water and makes a reasonably stable glaze slip in the neat state. Further clay addition at the point of use is required to further improve the stability of the slip and pre-fired properties such as strength and adherence. In the fired state, Gillespie borate is virtually identical to Gerstley borate by virtue of the chemical match of oxide content.\u003cbr\u003eThe special behavior of Gerstley and Gillespie borates that produces the unusual glaze effects results from two mechanisms: immiscibility and solubility. Boric oxide (B2O3), when provided to a glass as a coarse raw mineral (e.g. ulexite), is slightly immiscible with silicate glass matrices, and the differential surface energy of the molten phase drives a mass transfer process along the interface (Gibbs-Marangoni effect) that generates the characteristic variegated texture. The slight solubility of these borates also contributes to the mottled glaze surface via migration of soluble oxides, although this effect becomes exaggerated when mixed glazes are stored for long periods.\u003cbr\u003eWhile Gillespie Borate has the beneficial fluxing and glaze development properties of Gerstley borate, it does not have the variability or impurity levels that characterized Gerstley borate. Gillespie borate is a precise mixture of pure natural minerals and is manufactured under close quality control supervision. Hence, Gillespie borate does not vary over time and is a consistent, reliable raw material. Since Gillespie borate does not contain the impurity levels that provided off-color to Gerstley borate glazes, you may find your glazes whiter and brighter. 2.\u003cbr\u003e\u003c\/p\u003e\n\u003ch2 class=\"abz-seo-product\"\u003e\u003cspan style=\"text-decoration: underline;\" data-mce-style=\"text-decoration: underline;\"\u003eRecommendations for using Gillespie borate\u003c\/span\u003e\u003c\/h2\u003e\n- Do not use excess water in mixing the glaze.\u003cbr\u003e- Store the wet glaze in an airtight container.\u003cbr\u003e- When using any substitute material always test it in a small batch of glaze.\u003cbr\u003e- Test the glaze on the same clay body you will use in production.\u003cbr\u003e- After applying the glaze to several vertical test tiles place them throughout the kiln.\u003cbr\u003e\u003cspan style=\"font-weight: bold;\" data-mce-style=\"font-weight: bold;\"\u003eFootnotes\u003c\/span\u003e\u003cbr\u003e The exact chemical composition of Gillespie borate is proprietary to Hammill \u0026amp; Gillespie. Gillespie borate is a mixture of ulexite (Na2O.2CaO.5B2O3.16h4O) with various clay minerals (aluminum silicates), alkaline earth carbonates and silicates. This material contains approximately 25% B2O3, 23% CaO, 4% total alkali and 31% loss on ignition.\u003cbr\u003e\u003cimg align=\"\" alt=\"Gillespie Gerstley Borate Glaze\" border=\"0px\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/gillespie-borate-glaze.jpg?v=1684313276\" style=\"width: 325px;\" data-mce-style=\"width: 325px;\" data-mce-src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/gillespie-borate-glaze.jpg?v=1684313276\"\u003e\u003cbr\u003e","brand":"Sheffield Pottery","offers":[{"title":"1 Pound","offer_id":67286210740595,"sku":"RMGILBOR-1","price":3.8,"currency_code":"USD","in_stock":true},{"title":"5 Pounds","offer_id":67286210773363,"sku":"RMGILBOR-5","price":18.25,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":45113723584834,"sku":"RMGILBOR","price":35.5,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286210806131,"sku":"RMGILBOR-25","price":86.25,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":67286210838899,"sku":"RMGILBOR50","price":115.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/large-Glowmax_clay_dry.jpg?v=1696877281"},{"product_id":"goldart-clay-cedar-heights-50-pound-bag-rmgoldar50","title":"Goldart Stoneware Clay (Cedar Heights)","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eGoldart Stoneware Clay, by Cedar Heights resco. 50 Pound Bag.\u003c\/h2\u003e\n\u003cp\u003eGOLDART - is a ceramic grade stoneware clay (95% \u0026lt;74 microns) mined in Ohio and produced by the Cedar Heights Clay Company. It is used in clay bodies to increase refractoriness. Fired at cone 2 cream, and at cone 8 buff. This type of pottery clay is sometimes used for making backyard clay or cob ovens. \u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"5 Pounds","offer_id":67286259859827,"sku":"RMGOLDAR","price":6.0,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286259892595,"sku":"RMGOLDAR-10","price":11.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286259925363,"sku":"RMGOLDAR-25","price":25.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":45113724043586,"sku":"RMGOLDAR50","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/s-l1600_561c8282-5cb6-46e1-a373-077d8fa373a2.jpg?v=1696877882"},{"product_id":"hawthorn-fire-clay-for-cob-ovens-rmhawbon50","title":"Hawthorn Bond 35M Fire Clay","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eHAWTHORN BOND 35M Fire Clay- 50lb BAG\u003c\/h2\u003e\n\u003cp\u003eHAWTHORN BOND 35M Fire Clay- 50lb BAG:\u003cbr\u003eQuantity discounts and Bulk available. Please call to order large quantities of this low-fire pottery clay for sale: 888.774-2529\u003cbr\u003e50 lb bags can ship UPS\u003cbr\u003eA plastic fireclay exhibiting outstanding plasticity and workability. For a gummier option, check out Hawthorn's 50 mesh \u003ca href=\"https:\/\/www.sheffield-pottery.live\/products\/hawthorn-bond-fire-clay-50-mesh-50lb-bag-rmhawbon5050\"\u003eplastic fire clay\u003c\/a\u003e.\u003cbr\u003ePCE 31-32\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eHawthorn Bond Fire Clay Features:\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eFiring Temperature 1800F 2000F 2200F 2400F \u003cbr\u003eApproximate Cone (Small) 08 04 4 9 \u003cbr\u003eDry Shrinkage (%) 1.7 4.4 8.5 N\/A \u003cbr\u003eFired Shrinkage (%) 4.2 7.9 11.4 11.7 \u003cbr\u003eFired Color Tan-Pink Tan Yellow Gray-Yellow \u003cbr\u003eLOI (%) 12.99 12.92 13.67 N\/A\u003c\/p\u003e\n\u003cp\u003eSiO2 47.1 - 53.3% \u003cbr\u003eAl2O3 30.3 - 32.1% \u003cbr\u003eFe2O3 1.3 - 1.7% \u003cbr\u003eTiO2 1.7 - 2.2% \u003cbr\u003eK2O 0.6 - 1.0% \u003cbr\u003eMgO 0.2 - 0.4% \u003cbr\u003eCaO 0.3 - 0.5% \u003cbr\u003eNa2O 0.1 - 0.3% \u003cbr\u003eP2O5 0.1 - 0.3% \u003cbr\u003eLOI 10.5 – 15.55%\u003cbr\u003e\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"5 Pounds","offer_id":67286252683635,"sku":"RMHAWBON50-5","price":6.0,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286252716403,"sku":"RMHAWBON50-10","price":11.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286252749171,"sku":"RMHAWBON50-25","price":25.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":45113724109122,"sku":"RMHAWBON50","price":25.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/white-RMHAWBON50CO-2_9fe0479e-e81e-4840-aeb1-b6b98ac2e79a.jpg?v=1696878287"},{"product_id":"hawthorn-bond-fire-clay-50-mesh-50lb-bag-rmhawbon5050","title":"Hawthorn Bond 50M Fire Clay","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eHawthorn Bond 50M Fire Clay - 50 lb. bag\u003c\/h2\u003e\n\u003cp\u003eHAWTHORN BOND Fire Clay 50 Mesh 50lb Bag\u003cbr\u003eQuantity discounts and bulk available for this plastic fire clay. Please call to order large quantities of this Hawthorn clay. 888.774-2529\u003cbr\u003e50 lb bags can ship UPS\u003cbr\u003eA plastic fireclay exhibiting outstanding plasticity and workability.\u003cbr\u003ePCE 31-32 \u003cbr\u003eFiring Temperature 1800F 2000F 2200F 2400F \u003cbr\u003eApproximate Cone (Small) 08 04 4 9 \u003cbr\u003eDry Shrinkage (%) 1.7 4.4 8.5 N\/A \u003cbr\u003eFired Shrinkage (%) 4.2 7.9 11.4 11.7 \u003cbr\u003eFired Color Tan-Pink Tan Yellow Gray-Yellow \u003cbr\u003eLOI (%) 12.99 12.92 13.67 N\/A\u003c\/p\u003e\n\u003cp\u003eSiO2 47.1 - 53.3% \u003cbr\u003eAl2O3 30.3 - 32.1% \u003cbr\u003eFe2O3 1.3 - 1.7% \u003cbr\u003eTiO2 1.7 - 2.2% \u003cbr\u003eK2O 0.6 - 1.0% \u003cbr\u003eMgO 0.2 - 0.4% \u003cbr\u003eCaO 0.3 - 0.5% \u003cbr\u003eNa2O 0.1 - 0.3% \u003cbr\u003eP2O5 0.1 - 0.3% \u003cbr\u003eLOI 10.5 – 15.55% \u003cbr\u003e\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"5 Pounds","offer_id":67286252814707,"sku":"RMHAWBON5050-5","price":7.0,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286252847475,"sku":"RMHAWBON5050-10","price":13.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286252880243,"sku":"RMHAWBON5050-25","price":30.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":45113724404034,"sku":"RMHAWBON5050","price":29.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/Hawthorn_50m_23f4eb80-2b7f-4b09-99c0-070437c620df.jpg?v=1791876659"},{"product_id":"hawthorn-fire-clay-for-cob-ovens-rmhawbon50co","title":"Hawthorn 35M Fire Clay For Cob Ovens- 50Lb Bag Delivered Price","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cspan\u003e\u003c\/span\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eHawthorn Clay For Cob Ovens:\u003c\/h2\u003e\n\u003ch2 class=\"abz-seo-product\"\u003eHAWTHORN BOND 35M Fire Clay- 50lb Bag Dry Clay\u003c\/h2\u003e\n\u003cp\u003ePeople use many different types of clay for backyard ovens for bread and pizza and more. We recommend Hawthorn Fire Clay Mix because of it's workability and affordability. \u003cbr\u003eThis dry clay is much less expensive than a \"potter's clay\" which is usually a moist clay with fluxes and glass formers which are not needed for a clay oven.\u003cbr\u003e \u003cspan style=\"text-align: center;\"\u003eThis\u003c\/span\u003e\u003cspan style=\"text-align: center;\"\u003e fire clay mix will be delivered to you via speedy US Postal or UPS. Depending on your location, 50 pound bags of plasters may ship UPS \u003c\/span\u003e\u003cbr style=\"text-align: center;\"\u003e\u003cspan style=\"text-align: center;\"\u003eor may ship US Postal in two 25 pound units in a strong plastic bag which you can reseal with twist-ties that are included. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb style=\"text-align: center;\"\u003eThe price shown is for the northeast United States (ME, NH, MA,RI, CT, VT, NY and NJ)\u003cbr\u003ePlease select \"zone B\" option which adds just $5 postage if you are not in one of those states. \u003cbr\u003e\u003c\/b\u003e\u003cimg alt=\"Free Shipping Plasters Zone Map\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/raw-mats-zone-map.jpg?v=1684313302\" style=\"text-align: center;\"\u003e\u003cbr\u003eCoarse fire clay mix (either 20 or 35 mesh) is \"toothy\" so it is a good clay for any kind of adobe construction.\u003cbr\u003eFor this type of oven building, people will mix the clay in various proportions with chopped straw and sand.\u003cbr\u003eMasonry sand is always recommended over \"play sand\" : Play sand is usually a river-run sand so the particles are smooth and round making it suitable for a sand box, where a mason's sand is a more block-like shaped particle which microscopically stacks like tiny bricks making it suitable as an aggregate in cement, mortar and clay or adobe blends.\u003c\/p\u003e\n\u003cp\u003eClay adobe ovens do not get hot enough to actually turn the clay to hardened ceramic like it would in a kiln firing. The cob oven clay will be quite hard to the touch but will turn soft again in rain so backyard ovens should have a shed roof or some other way to protect it from the elements. Some folks add some Portland cement, especially in a finish coat to help give a bit more water resistance.\u003c\/p\u003e\n\u003cp\u003eWe offer this fire clay mix for it's use in pottery making. Since oven building is beyond the scope of the manufacturers' recommendations to use this for oven building projects, we cannot really guarantee it's performance. All we can say is that , people have told us that it works well !!! So TEST TEST TEST !!! It is up to you to make sure this Hawthorn clay is going to work with your methods.\u003c\/p\u003e\n\u003cp\u003eThe items people order from us for their oven building projects are \u003ca href=\"https:\/\/www.sheffield-pottery.live\/collections\/hard-bricks-firebrick\"\u003efire brick\u003c\/a\u003e and \u003ca href=\"https:\/\/www.sheffield-pottery.live\/collections\/high-alumina-cone-11-kiln-shelves\"\u003ekiln shelves\u003c\/a\u003e. Our high temperatures bricks are used as the floor and or walls of the oven. Kiln shelves are commonly used as a nice smooth floor or like a pizza stone. Again, these applications are beyond the normal usage for these materials. Kiln shelves are not FDA rated for food. We make no claim as to their suitability, all we know is that pizza and bread makers order this Hawthorn clay all the time!\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"font-weight: bold;\"\u003eIN STORE PICKUP\u003c\/span\u003e\u003cbr\u003eYou must call 24 hours in advance of your visit to pickup clay and other raw materials\u003c\/p\u003e\n\u003cp\u003eQuantity discounts and Bulk available. Please call to order large quantities. 888.774-2529\u003c\/p\u003e\n\u003cp\u003eA plastic fireclay exhibiting outstanding plasticity and workability.\u003cbr\u003ePCE 31-32 \u003cbr\u003eFiring Temperature 1800F 2000F 2200F 2400F \u003cbr\u003eApproximate Cone (Small) 08 04 4 9 \u003cbr\u003eDry Shrinkage (%) 1.7 4.4 8.5 N\/A \u003cbr\u003eFired Shrinkage (%) 4.2 7.9 11.4 11.7 \u003cbr\u003eFired Color Tan-Pink Tan Yellow Gray-Yellow \u003cbr\u003eLOI (%) 12.99 12.92 13.67 N\/A\u003c\/p\u003e\n\u003cp\u003eSiO2 47.1 - 53.3% \u003cbr\u003eAl2O3 30.3 - 32.1% \u003cbr\u003eFe2O3 1.3 - 1.7% \u003cbr\u003eTiO2 1.7 - 2.2% \u003cbr\u003eK2O 0.6 - 1.0% \u003cbr\u003eMgO 0.2 - 0.4% \u003cbr\u003eCaO 0.3 - 0.5% \u003cbr\u003eNa2O 0.1 - 0.3% \u003cbr\u003eP2O5 0.1 - 0.3% \u003cbr\u003eLOI 10.5 – 15.55%\u003cbr\u003e\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"Default Title","offer_id":45113724567874,"sku":"RMHAWBON50CO","price":62.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/white-RMHAWBON50CO-2.jpg?v=1696878249"},{"product_id":"hawthorn-fireclay-20m-50-pound-bag-rmhawfir50","title":"Hawthorn Bond 20M Fire Clay","description":"\u003cdiv class=\"rm-testing-statement\" style=\"border:2px solid #8a5a00;border-radius:6px;padding:12px 16px;margin:16px 0;background:#fdf6e3;\"\u003e\u003cp style=\"margin:0;\"\u003e\u003cstrong\u003eYou must test before you use it, at any scale.\u003c\/strong\u003e Raw materials, mined or man-made, are not consistent. Color, strength, particle size and chemistry can change from one bag to the next and from one supplier to another, even when the name on the bag stays the same. Before you use this material in a glaze, slip or clay body of any size, mix a small test batch, fire it on your own clay in your own kiln, and check the results.\u003c\/p\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cspan\u003e\u003c\/span\u003eHawthorn Bond 20M Fireclay - 50 lb. bag\u003c\/p\u003e","brand":"Sheffield Pottery","offers":[{"title":"5 Pounds","offer_id":67286252945779,"sku":"RMHAWFIR-5","price":6.0,"currency_code":"USD","in_stock":true},{"title":"10 Pounds","offer_id":67286252978547,"sku":"RMHAWFIR-10","price":11.0,"currency_code":"USD","in_stock":true},{"title":"25 Pounds","offer_id":67286253011315,"sku":"RMHAWFIR-25","price":25.0,"currency_code":"USD","in_stock":true},{"title":"50 Pounds","offer_id":45113724698946,"sku":"RMHAWFIR50","price":24.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/files\/Hawthorn_20m_322430c3-ffaa-412b-86bd-98911ec5f8af.jpg?v=1791876660"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0677\/5508\/2050\/collections\/FlintSilica325mF_1000x1000-transformed.jpg?v=1786647514","url":"https:\/\/www.sheffield-pottery.live\/collections\/raw-materials-dry-clay-chemicals-plaster-per-bag.oembed","provider":"Sheffield Pottery Inc.","version":"1.0","type":"link"}